package com.text.day1_1;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Random;

public class File {
    public static void main(String[] args) throws IOException {
        String filepa = "C:\\Users\\crwyy\\Desktop\\换轴的按键.txt";
        BufferedReader a = new BufferedReader(new FileReader(filepa));

        String line = a.readLine();
        System.out.println(line);

        Random random = new Random();
        int i = random.nextInt(4);  //产生一个【0.4)
    }
}
